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squirrelscan

squirrelscan is an MCP server that adds web browsing tools to AI assistants such as Claude Code, Cursor and VS Code. Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP. It has 296 GitHub stars, is released under the MIT license and runs as a remote server at https://mcp.squirrelscan.com/mcp.

github.com/squirrelscan/squirrelscan (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install squirrelscan

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

Settings > Connectors > Add custom connector
URL: https://mcp.squirrelscan.com/mcp

Remote servers are added as a custom connector, not in claude_desktop_config.json.

Claude Code

claude mcp add --transport http squirrelscan "https://mcp.squirrelscan.com/mcp"

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "squirrelscan": {
      "url": "https://mcp.squirrelscan.com/mcp"
    }
  }
}

VS Code

.vscode/mcp.json
{
  "servers": {
    "squirrelscan": {
      "type": "http",
      "url": "https://mcp.squirrelscan.com/mcp"
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About squirrelscan

The website QA tool for your coding agent squirrelscan is an Open Source cli tool that audits websites for SEO, performance, security, accessibility, agent experience and other issues, and gives your coding agent exact fixes. Run it from the CLI, inside your coding agent, in the cloud, or over MCP.

  • agent
  • audit
  • cli
  • llm
  • performance
  • seo
  • website
  • accessibility
  • agent-skills
  • ai-agents

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FAQ

squirrelscan FAQ

Still curious? Email info@appsgit.com.

How do I install the squirrelscan MCP server?

It is a remote MCP server at https://mcp.squirrelscan.com/mcp. Add it with claude mcp add --transport http in Claude Code, as a url entry in .cursor/mcp.json or .vscode/mcp.json, or as a custom connector in the Claude apps.

Is squirrelscan free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is squirrelscan actively maintained?

The most recent commit was on Oct 26, 2026. The latest release is v0.0.133, published Oct 24, 2026. appsgit only lists MCP servers with a commit in the last six months.